* {
    margin: 0;
    padding: 0;
}

.box {
    width: 100vw;
    height: 100vh;
    overflow: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

canvas {
    box-shadow: 0 0 2px rgb(118, 118, 220);
}

.control {
    margin-top: 10px;
}

button {
    padding: 10px 15px;
    cursor: pointer;
}
